import java.math.BigInteger;
import java.util.*;

public class _2023_11_2 {
    public static int Add(int a,int b) {
        while((a & b) != 0){
            int c = a ^ b;
            b = ((a & b) << 1);
            a = c;
        }
        return a ^ b;
    }

    public static void main1(String[] args) {
        System.out.println(Add(1,2));
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNextInt()){
            String s1 = sc.next();
            String s2 = sc.next();
            String s3 = sc.next();

            BigInteger a = new BigInteger(s1);
            BigInteger b = new BigInteger(s2);
            BigInteger c = new BigInteger(s3);

            if(a.compareTo(b) < 0){
                BigInteger d = b;
                b = a;
                a = d;
            }

            if(c.compareTo(a.add(b)) < 0 && c.compareTo(a.add(b.multiply(new BigInteger("-1")))) > 0){
                System.out.println("Yes");
            }else{
                System.out.println("No");
            }
        }
    }
}
